Sintering FDM / Virtual foundry?

Hi long time lurker (maybe i've commented once or twice, i don't remember). I've been looking into the FDM metal filaments that need to be sintered (virtual foundry). It seems that at home sintering kilns seem to be reasonably priced, has anyone here made barrels/rails/chambers/bolts/uppers with any of these sintering workflows? (https://shop.thevirtualfoundry.com/collections/sintering-kilns-and-accessories/products/firex-max-sintering-kiln) or even (https://shop.thevirtualfoundry.com/collections/sintering-kilns-and-accessories/products/skutt-firebox-sintering-kiln) should be big enough? Just wondering if anyone does/has tried?